Hi,
Could you tell me can I use IO group 4(PORTE) for high-drive pins?
In its data sheet, IO group 3 and 4 look like high-drive pins, however reference manual is written that only eight GPIOs in IO group 3 are supporting high-drive mode.
Which is the correct definition?
<Data Sheet>
<Reference manual>
Best regards,
M.Kiniwa
Hi Masahiro,
Please download the latest version Data Sheet and Reference Manual.
PTB0, PTB1, PTC3, PTC4, PTD6, and PTD7 I/O have both high drive and normal drive capability selected by the associated PTx_PCRn[DSE] control bit. All other GPIOs are normal drive only.
PORTE does not suppor thigh-drive mode.
Best Regards,
Robin
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HI Robin,
Thank you for your answer.
But I use K27.(not KL27), and I confirmed K27 data sheet and reference manual as below.
https://www.nxp.com/docs/en/data-sheet/K27P169M150SF5V2.pdf
https://www.nxp.com/docs/en/reference-manual/K27P169M150SF5RM.pdf
Could you re-confirm it?
Best regards,
M.Kiniwa
In Kinetis K27, PORTE support high-drive mode.
According to chapter "11.2.1 Port control and interrupt module features" of K27 Reference manual , you can find the correct information.
Best Regards,
Robin
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Hi Robin,
Thank you for your reply.
I confirmed the Table 11-2 in K27 reference manual and I see that Port C supporting drive strength control.
However I got an additional question about drive strength control of Port C.
In this table, PTC3, 4 and 24 to 29 support drive strength enable control, but PTC 24 to 29 are assigned IO group 2 as below.
And IO group 2 looks like they don't support high drive strength.
If PTC24 to 29 supported high drive strength, could tell me their drive current?
<Data sheet Table 4>
Best regards,
M.Kiniwa
See the feedback below:
So, Design did confirm that Port E and PTC24-29 do support high-drive. There was some confusion as these pins use a slightly different pad cell than the other PTB0,PTB1,PTC3,PTC4, PTD4-7. I am already addressing the discrepancies found within the RM and DS and submitting the changes to the Tech Docs team.
In summary, Table 11-2 is correct regarding the high drive functionality.
Sorry for my last reply.
I have report it to internal team. And I will inform you as soon as I get any feedback.
Best Regards,
Robin